Bicycle frame



FIG. 1 is a rear, top perspective view of a bicycle frame showing the new design.

FIG. 2 is a top plan view of the bicycle frame showing the new design.

FIG. 3 is a bottom plan view of the bicycle frame showing the new design.

FIG. 4 is a rear end view of the bicycle frame showing the new design.

FIG. 5 is a right side elevation view of the bicycle frame showing the new design.

FIG. 6 is a front end view of the bicycle frame showing the new design; and,

FIG. 7 is a left side elevation view of the bicycle frame showing the new design.

The broken lines shown in the drawings are for illustrative purposes only, illustrate additional portions of the bicycle frame shown in the drawings, and form no part of the presently claimed design.

The shading lines shown in the drawings represent the three-dimensional contour of the design, and are not intended to indicate surface decoration. 

We claim the ornamental design for a bicycle frame, as shown and described. 